FailZero AR-10 .308 Black Topcoat Nickel Boron Bolt Carrier Group

Featuring wear-resistant nickel boron-coated components with an anti-reflective black topcoat, the FailZero AR-10 .308 Black Topcoat Nickel Boron Bolt Carrier Group comes fully assembled and ready to install in most AR-10-pattern receivers. Featuring heavy-duty tool steel construction, this BCG includes a precision-machined bolt and extractor, bolt carrier, cam pin, carrier key, and firing pin for faithful, drop-in service right out of the box. Compatible with semi-auto and full-auto firearms.Note: High-friction/wear areas, including ramps, rails, and other contact points, will eventually wear and expose the nickel boron coating beneath. This is considered NORMAL wear.